jQuery drop-down box multiple selection

18 May 2023

In web development, the drop-down box (select) is one of the commonly used user interaction controls. Typically, we set the option values ​​of a drop-down box, and then the user can select the option they need. But sometimes, we need to prevent users from selecting certain options under certain circumstances. So how to use jQuery to set the value of the drop-down box and prohibit selection? This article will cover this issue in detail. 1. Use jQuery to set the value of the drop-down box. In jQuery, you can easily set the value of the drop-down box through the .val() method. This method accepts a

16 May 2016

This article mainly introduces the jQuery implementation of the drop-down box image selection function, which can realize the drop-down list function with images. It involves the use of the jquery plug-in imageselect.js. Friends who need it can refer to the following

16 May 2016

This article mainly introduces several methods for implementing drop-down box effects using combobox in jQuery easyui. It is very simple and practical. Friends who need it can refer to it.

16 May 2016

This article mainly introduces the effect of jquery imitating QQ login account selection drop-down box in detail. It has certain reference value. Interested friends can refer to it.

16 May 2016

A recent new requirement requires the use of drop-down multi-select boxes to implement cascading selection of provinces and cities.

25 May 2023

With the continuous development of Web technology and the continuous advancement of the times, jQuery has become one of the most commonly used Javascript libraries in front-end development. In fact, using jQuery simplifies many operations, such as clearing drop-down boxes. What is jQuery clear dropdown box? When we create tables or forms on web pages, we often need to use drop-down boxes. Previously, we might need to manually enter the name and value of each item in the drop-down box. However, there is now a better way. You can quickly create a drop-down list by clearing the drop-down box using jQuery. also,

17 Jul 2019

The first step is to introduce CSS files and JS files, and import the bootstrap-select component. ||The second step is to add "multiple" and set it to multiple selection. The setting can select up to 2 items, that is, data-max-options="2". ||The third step is to add retrieval and set attributes, and add select all/inverse selection function.

11 Apr 2023

jQuery is a widely used JavaScript library that helps developers handle DOM operations, event handling, and Ajax requests more easily, so it is widely used in web development. In this article, we will discuss how to use jQuery to implement the jump function of drop-down box selection. First, let's take a look at the basic HTML code as follows: ```<select id="selectBox"> <option value="http://www.google.c

09 May 2023

Drop-down box change event jQuery is a technology widely used in web development. In web design, it is often necessary to use drop-down boxes to select different options. You can use jQuery to trigger corresponding events when the drop-down box options change, so as to update or change the content of the web page in real time. The following will introduce how to use jQuery to implement drop-down box change events. 1. Basic operations In jQuery, drop-down box change events are mainly implemented using the change() method. This method is triggered when the drop-down box option changes and can perform some operations.